I'm only going on what info I see in front of me and it's just personal opinion but even tho it's $150 more (which may be negotiable) I'd be leaning toward the second one and here's why...
The seller in the second ad knows what he has, knows it's in great shape and has gone to the effort to take usable pics in good lighting to prove it. No guarantee, but it will probably come with spare parts and tools as well, where as the other ad sounds like it's just going to be the table and while you can't see anything wrong with it in the pics, the pics are crap.
The first ad may be a perfectly acceptable table, but with good items going fast on craigslist, I'd home in on the better sounding one first and save the other for backup.
I'm sure others here would do it the other way around to potentially save $150, but when it comes to something I'm really into, I want the best quality I can get and if it costs a little more I'm still happier than getting a good deal on quality I'm not happy with.
Just my 2 cents and mileage may vary depending on circumstances at hand.